Structural Composite Battery for Small UAVs

The military currently employs small unmanned aerial vehicles (UAVs) for a range of critical operations. These UAVs play a crucial role in surveillance, reconnaissance, target acquisition, and intelligence gathering. They provide real-time situational awareness, support tactical decision-making, and aid in force protection. However, current limitations of small UAVs include limited flight duration, restricted payload capacity, and dependency on external power sources or frequent battery changes, which can hamper their operational effectiveness. Structural batteries offer a potential solution to these limitations by integrating energy storage functionality directly into the load-bearing structures of UAVs. By reducing weight and increasing energy storage capacity, structural batteries can significantly extend flight times, enhance payload capacity, and improve overall mission capabilities. Ā This proposal aims to address the solicitation for novel multifunctional materials and lightweight structures through the development of a structural battery. Our approach includes three key components: Ā Development of a mechanically strong gel-electrolyte with excellent conductivity. We will focus on creating an electrolyte that provides structural rigidity but also enables efficient ion transport. Ā Utilization of carbon fiber as both the anode material and current collector. By incorporating carbon fiber, we can enhance the structural integrity of the battery while also benefiting from its exceptional electrical properties. Ā Development of a high-capacity LMR-NMC cathode with superior cycling stability. Our focus will be on formulating and optimizing a cathode material that offers increased energy storage capabilities and robust mechanical properties. Ā During Phase I, Lynntech will focus on conducting a proof-of-concept demonstration to validate the feasibility of the proposed concept. This will entail synthesizing the necessary battery materials, performing laboratory bench testing, and utilizing computer modeling analysis. In Phase II, we will refine the concept by fabricating and evaluating prototype parts. These prototypes will undergo rigorous testing in simulated or realistic environments. The weight reduction targets will be identified and addressed to optimize the structural battery design. Additionally, the risks, roadblocks, and challenges associated with full-rate production will be identified and addressed. Ā The proposed structural battery aims to achieve a weight that is comparable to or even smaller than commercially used batteries, all while delivering similar or improved electrochemical performance. Moreover, it will serve as a mechanically robust component integrated within the structure, thereby freeing up valuable space currently occupied by conventional batteries.